Know Your Environment. Protect Your Health.

Trichloroacetic acid

River Acres Water Supply Corporation

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

46

Samples

0

Samples exceeding legal limit (MCL)

29

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20181.80 ppb86ND - 3.70 ppb
20190.975 ppb86ND - 1.90 ppb
20200.688 ppb84ND - 1.70 ppb
20211.28 ppb86ND - 2.40 ppb
20220.500 ppb83ND - 1.50 ppb
20230.917 ppb64ND - 1.70 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-05AE16603ND
2018-03-05AE16601ND
2018-06-14AE300081.80 ppb
2018-06-14AE300022.50 ppb
2018-07-25AE344571.70 ppb
2018-07-25AE344751.10 ppb
2018-12-04AE477763.60 ppb
2018-12-04AE477813.70 ppb
2019-02-21AE552841.80 ppb
2019-02-21AE552851.90 ppb
2019-05-29AE683791.000 ppb
2019-05-29AE683801.10 ppb
2019-08-01AE767691.000 ppb
2019-08-01AE767701.000 ppb
2019-11-21AE90162ND
2019-11-21AE90163ND
2020-03-04AF01077ND
2020-03-04AF01078ND
2020-05-04AF090711.30 ppb
2020-05-04AF090761.000 ppb
2020-08-14AF238061.50 ppb
2020-08-14AF238261.70 ppb
2020-10-27AF32120ND
2020-10-27AF32118ND
2021-03-25AF48121ND
2021-03-25AF48129ND
2021-06-21AF588081.70 ppb
2021-06-21AF588112.00 ppb
2021-08-17AF666542.40 ppb
2021-08-17AF666551.70 ppb
2021-11-10AF763541.20 ppb
2021-11-10AF763551.20 ppb
2022-02-28AF86903ND
2022-02-28AF86904ND
2022-04-27AF94775ND
2022-04-27AF947801.10 ppb
2022-08-08AG08039ND
2022-08-08AG08047ND
2022-10-19AG175831.40 ppb
2022-10-19AG175861.50 ppb
2023-02-22AG299261.20 ppb
2023-02-22AG299271.000 ppb
2023-06-07AG434711.70 ppb
2023-06-07AG434721.60 ppb
2023-11-30AG64988ND
2023-12-22AG67346ND